对一个表达式中的位执行无符号右移。
Performs an unsigned right shift of the bits in an expression and assigns the result to the first argument.在运算式中执行不带正负号的位元右移,再将结果指派给第一个引数。
You'll be able to change background colors by either rotating the mouse wheel or using the left and right shift keys.您将能够通过旋转鼠标滚轮或使用左和右shif t键更改背景色。